- Joined
- Sep 29, 2017
- Messages
- 2,253
Hallo guys.
I know that a motor needs speed for the motor fan to keep it cool,but as you know your motor speed falls as you go down with the frequency to controle spindle on your mill using the vfd. Is there a dangerously low frequency you can run on a vfd. My motor runs at 50.00Hz at full tilt. I gather that at a short period of time it wil be ok if you run it at say 20.00Hz. So basically what is the lowest frequency and for how long can you run it at that frequency without risking motor damage?
-Michael-
I know that a motor needs speed for the motor fan to keep it cool,but as you know your motor speed falls as you go down with the frequency to controle spindle on your mill using the vfd. Is there a dangerously low frequency you can run on a vfd. My motor runs at 50.00Hz at full tilt. I gather that at a short period of time it wil be ok if you run it at say 20.00Hz. So basically what is the lowest frequency and for how long can you run it at that frequency without risking motor damage?
-Michael-